"I don't do heavy lifting," Rita chimes in unhelpfully.

She shrugs and continues. "But I suppose I can design and put together a few things. Can't have the people who're supposed to watch my back getting soft, or anything." It's not a particularly interesting project to her, but she can see the merit in having well-trained allies around. And Peridot does have a point... designing and constructing things from scratch makes for a pretty appealing change of pace.